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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Additional Paid-in Capital [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balances (in shares) (Accounting Standards Update 2018-02 [Member]) at Dec. 31, 2018	0
Balances (in shares) at Dec. 31, 2018						9,735,055
Balances (Accounting Standards Update 2018-02 [Member]) at Dec. 31, 2018	$ 0	$ 0	$ 235	$ (235)	$ 0
Balances at Dec. 31, 2018						$ 97	$ 118,835	$ 101,194	$ (1,536)	$ 218,590
Net income						0	0	5,139	0	5,139
Pension liability adjustment						0	0	0	53	53
Unrealized gain (loss) on cash flow hedges, net of tax expense/benefit						$ 0	0	0	(15)	(15)
Issuance of common stock under stock compensation plans (in shares)						9,772
Issuance of common stock under stock compensation plans						$ 0	0	0	0	0
Share-based compensation expense						$ 0	675	0	0	675
Balances (in shares) at Jun. 30, 2019						9,744,827
Balances at Jun. 30, 2019						$ 97	119,510	106,568	(1,733)	224,442
Balances (in shares) at Mar. 31, 2019						9,735,055
Balances at Mar. 31, 2019						$ 97	118,857	103,594	(1,760)	220,788
Net income						0	0	2,974	0	2,974
Pension liability adjustment						$ 0	0	0	27	27
Issuance of common stock under stock compensation plans (in shares)						9,772
Issuance of common stock under stock compensation plans						$ 0	0	0	0	0
Share-based compensation expense						$ 0	653	0	0	653
Balances (in shares) at Jun. 30, 2019						9,744,827
Balances at Jun. 30, 2019						$ 97	119,510	106,568	(1,733)	224,442
Balances (in shares) at Dec. 31, 2019						9,746,979
Balances at Dec. 31, 2019						$ 97	120,544	129,331	(1,814)	248,158
Net income						0	0	6,562	0	6,562
Pension liability adjustment						0	0	0	49	49
Unrealized gain (loss) on cash flow hedges, net of tax expense/benefit						$ 0	0	0	(76)	(76)
Issuance of common stock under stock compensation plans (in shares)						53,831
Issuance of common stock under stock compensation plans						$ 1	(619)	0	0	(618)
Share-based compensation expense						$ 0	1,433	0	0	1,433
Balances (in shares) at Jun. 30, 2020						9,800,810
Balances at Jun. 30, 2020						$ 98	121,358	135,893	(1,841)	255,508
Balances (in shares) at Mar. 31, 2020						9,787,995
Balances at Mar. 31, 2020						$ 98	120,902	129,895	(1,710)	249,185
Net income						0	0	5,998	0	5,998
Pension liability adjustment						0	0	0	24	24
Unrealized gain (loss) on cash flow hedges, net of tax expense/benefit						$ 0	0	0	(155)	(155)
Issuance of common stock under stock compensation plans (in shares)						12,815
Issuance of common stock under stock compensation plans						$ 0	(517)	0	0	(517)
Share-based compensation expense						$ 0	973	0	0	973
Balances (in shares) at Jun. 30, 2020						9,800,810
Balances at Jun. 30, 2020						$ 98	$ 121,358	$ 135,893	$ (1,841)	$ 255,508

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