Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS. (Details 1)

v3.20.1
FAIR VALUE MEASUREMENTS. (Details 1) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Assets:    
Assets $ 70,400 $ 88,492
Liabilities:    
Liabilities (304) (2,837)
Warrants [Member]    
Liabilities:    
Liabilities (304) (977)
Level 1 [Member]    
Assets:    
Assets 2,438
Liabilities:    
Liabilities (1,860)
Level 1 [Member] | Warrants [Member]    
Liabilities:    
Liabilities
Level 2 [Member]    
Assets:    
Assets 15,654
Liabilities:    
Liabilities
Level 2 [Member] | Warrants [Member]    
Liabilities:    
Liabilities
Level 3 [Member]    
Assets:    
Assets 70,400 70,400
Liabilities:    
Liabilities (304) (977)
Level 3 [Member] | Warrants [Member]    
Liabilities:    
Liabilities (304) (977)
Derivative financial instruments [Member]    
Assets:    
Assets   2,438
Liabilities:    
Liabilities   (1,860)
Derivative financial instruments [Member] | Level 1 [Member]    
Assets:    
Assets   2,438
Liabilities:    
Liabilities   (1,860)
Derivative financial instruments [Member] | Level 2 [Member]    
Assets:    
Assets  
Liabilities:    
Liabilities  
Derivative financial instruments [Member] | Level 3 [Member]    
Assets:    
Assets  
Liabilities:    
Liabilities  
Long-lived assets held-for-sale [Member]    
Assets:    
Assets 70,400 70,400
Long-lived assets held-for-sale [Member] | Level 1 [Member]    
Assets:    
Assets  
Long-lived assets held-for-sale [Member] | Level 2 [Member]    
Assets:    
Assets  
Long-lived assets held-for-sale [Member] | Level 3 [Member]    
Assets:    
Assets 70,400
Defined Benefit Plan Assets Large U.S. Equity [Member]    
Assets:    
Assets [1],[2]   $ 4,654
Benefit plan allocation percentage [1],[2]   30.00%
Defined Benefit Plan Assets Large U.S. Equity [Member] | Level 1 [Member]    
Assets:    
Assets [1],[2]  
Defined Benefit Plan Assets Large U.S. Equity [Member] | Level 2 [Member]    
Assets:    
Assets [1],[2]   4,654
Defined Benefit Plan Assets Large U.S. Equity [Member] | Level 3 [Member]    
Assets:    
Assets [1],[2]  
Defined Benefit Plan Assets Small/Mid U.S. Equity [Member]    
Assets:    
Assets [1],[3]   $ 2,348
Benefit plan allocation percentage [1],[3]   15.00%
Defined Benefit Plan Assets Small/Mid U.S. Equity [Member] | Level 1 [Member]    
Assets:    
Assets [1],[3]  
Defined Benefit Plan Assets Small/Mid U.S. Equity [Member] | Level 2 [Member]    
Assets:    
Assets [1],[3]   2,348
Defined Benefit Plan Assets Small/Mid U.S. Equity [Member] | Level 3 [Member]    
Assets:    
Assets [1],[3]  
Defined Benefit Plan Assets International Equity [Member]    
Assets:    
Assets [1],[4]   $ 2,596
Benefit plan allocation percentage [1],[4]   17.00%
Defined Benefit Plan Assets International Equity [Member] | Level 1 [Member]    
Assets:    
Assets [1],[4]  
Defined Benefit Plan Assets International Equity [Member] | Level 2 [Member]    
Assets:    
Assets [1],[4]   2,596
Defined Benefit Plan Assets International Equity [Member] | Level 3 [Member]    
Assets:    
Assets [1],[4]  
Defined Benefit Plan Assets Fixed Income [Member]    
Assets:    
Assets [1],[5]   $ 6,056
Benefit plan allocation percentage [1],[5]   38.00%
Defined Benefit Plan Assets Fixed Income [Member] | Level 1 [Member]    
Assets:    
Assets [1],[5]  
Defined Benefit Plan Assets Fixed Income [Member] | Level 2 [Member]    
Assets:    
Assets [1],[5]   6,056
Defined Benefit Plan Assets Fixed Income [Member] | Level 3 [Member]    
Assets:    
Assets [1],[5]  
[1] Included in derivative instruments in the consolidated balance sheets.
[2] This category includes investments in funds comprised of equity securities of large U.S. companies. The funds are valued using the net asset value method in which an average of the market prices for the underlying investments is used to value the fund.
[3] This category includes investments in funds comprised of equity securities of small- and medium-sized U.S. companies. The funds are valued using the net asset value method in which an average of the market prices for the underlying investments is used to value the fund.
[4] This category includes investments in funds comprised of equity securities of foreign companies including emerging markets. The funds are valued using the net asset value method in which an average of the market prices for the underlying investments is used to value the fund.
[5] This category includes investments in funds comprised of U.S. and foreign investment-grade fixed income securities, high-yield fixed income securities that are rated below investment-grade, U.S. treasury securities, mortgage-backed securities, and other asset-backed securities. The funds are valued using the net asset value method in which an average of the market prices for the underlying investments is used to value the fund.