Condensed Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Thousands		Total	Adjustment	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Retained Earnings Adjustment	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interests
Balance at Mar. 31, 2019		$ 23,358	$ (41)	$ 506	$ 0	$ 2,866	$ 21,191	$ (41)	$ (205)	$ (1,000)
Balance (in shares) at Mar. 31, 2019				2,022	0
Increase (Decrease) in Stockholders' Equity
Net income (loss)	[1]	3,816					1,782			2,034
Repurchase of Common Stock		(126)		$ (4)			(122)
Repurchase of Common Stock (in shares)				(17)
Stock Split		0		$ 252		(252)
Stock Split (in shares)				1,010
Issuance of Debt - Trust Preferred Securities		(4,000)					(4,000)
Issuance of Warrants		(840)					(840)
Unrealized gain (loss) on interest rate swaps, net of tax		(176)							(176)
Foreign currency translation (loss) gain		(18)							(30)	12
Adjustment to fair value of redeemable non-controlling interests		(985)				(985)
Balance at Jun. 30, 2019		20,988		$ 754	$ 0	1,629	17,970		(411)	1,046
Balance (in shares) at Jun. 30, 2019				3,015	0
Balance at Mar. 31, 2019		23,358	$ (41)	$ 506	$ 0	2,866	21,191	$ (41)	(205)	(1,000)
Balance (in shares) at Mar. 31, 2019				2,022	0
Increase (Decrease) in Stockholders' Equity
Unrealized gain (loss) on interest rate swaps, net of tax		(170)
Foreign currency translation (loss) gain		(29)
Balance at Dec. 31, 2019		23,401		$ 756	$ (2,157)	1,029	23,180		(420)	1,013
Balance (in shares) at Dec. 31, 2019				3,023	(110)
Balance at Jun. 30, 2019		20,988		$ 754	$ 0	1,629	17,970		(411)	1,046
Balance (in shares) at Jun. 30, 2019				3,015	0
Increase (Decrease) in Stockholders' Equity
Net income (loss)	[1]	5,698					5,715			(17)
Repurchase of Common Stock		(73)		$ 2			(75)
Repurchase of Common Stock (in shares)				8
Unrealized gain (loss) on interest rate swaps, net of tax		(88)							(88)
Foreign currency translation (loss) gain		41							38	3
Adjustment to fair value of redeemable non-controlling interests		781				781
Balance at Sep. 30, 2019		27,347		$ 756	$ 0	2,410	23,610		(461)	1,032
Balance (in shares) at Sep. 30, 2019				3,023	0
Increase (Decrease) in Stockholders' Equity
Net income (loss)	[1]	(449)					(430)			(19)
Repurchase of Common Stock		(2,157)			$ (2,157)
Repurchase of Common Stock (in shares)					110
Unrealized gain (loss) on interest rate swaps, net of tax		94							94
Foreign currency translation (loss) gain		(53)							(53)
Adjustment to fair value of redeemable non-controlling interests		(1,381)				(1,381)
Balance at Dec. 31, 2019		23,401		$ 756	$ (2,157)	1,029	23,180		(420)	1,013
Balance (in shares) at Dec. 31, 2019				3,023	(110)
Balance at Mar. 31, 2020		25,011		$ 756	$ (2,617)	2,636	23,768		(537)	1,005
Balance (in shares) at Mar. 31, 2020				3,023	(141)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	[1]	(846)					(841)			(5)
Unrealized gain (loss) on interest rate swaps, net of tax		(26)							(26)
Foreign currency translation (loss) gain		(67)							(67)
Adjustment to fair value of redeemable non-controlling interests		429				429
Balance at Jun. 30, 2020		24,501		$ 756	$ (2,617)	3,065	22,927		(630)	1,000
Balance (in shares) at Jun. 30, 2020				3,023	(141)
Balance at Mar. 31, 2020		25,011		$ 756	$ (2,617)	2,636	23,768		(537)	1,005
Balance (in shares) at Mar. 31, 2020				3,023	(141)
Increase (Decrease) in Stockholders' Equity
Unrealized gain (loss) on interest rate swaps, net of tax		100
Foreign currency translation (loss) gain		(157)
Balance at Dec. 31, 2020		21,928		$ 756	$ (2,617)	1,287	22,105		(594)	991
Balance (in shares) at Dec. 31, 2020				3,023	(141)
Balance at Jun. 30, 2020		24,501		$ 756	$ (2,617)	3,065	22,927		(630)	1,000
Balance (in shares) at Jun. 30, 2020				3,023	(141)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	[1]	(2,928)					(2,920)			(8)
Unrealized gain (loss) on interest rate swaps, net of tax		55							55
Foreign currency translation (loss) gain		(68)							(68)
Adjustment to fair value of redeemable non-controlling interests		(890)				(890)
Balance at Sep. 30, 2020		20,670		$ 756	$ (2,617)	2,175	20,007		(643)	992
Balance (in shares) at Sep. 30, 2020				3,023	(141)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	[1]	2,097					2,098			(1)
Unrealized gain (loss) on interest rate swaps, net of tax		71							71
Foreign currency translation (loss) gain		(22)							(22)
Adjustment to fair value of redeemable non-controlling interests		(888)				(888)
Balance at Dec. 31, 2020		$ 21,928		$ 756	$ (2,617)	$ 1,287	$ 22,105		$ (594)	$ 991
Balance (in shares) at Dec. 31, 2020				3,023	(141)

[1] Excludes amount attributable to redeemable non-controlling interest in Contrail.