Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands		Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2017		6,161
Balance at Dec. 31, 2017		$ 115	$ 81,559	$ 7,444	$ (129,183)	$ 167,669	$ 127,604
Net Income						1,387	1,387
Stock awards-shares issued including tax benefits (in shares)		17
Stock awards-shares issued including tax benefits			168				168
Treasury stock repurchases (in shares)		(1)
Treasury stock repurchases					(36)		(36)
Stock based compensation	[1]		162				162
Balance (in shares) at Mar. 31, 2018		6,177
Balance at Mar. 31, 2018		$ 115	81,889		(129,219)	176,500	129,285
Balance (in shares) at Dec. 31, 2017		6,161
Balance at Dec. 31, 2017		$ 115	81,559	7,444	(129,183)	167,669	127,604
Net Income							8,676
Balance (in shares) at Jun. 30, 2018		6,054
Balance at Jun. 30, 2018		$ 116	82,421		(136,714)	183,789	129,612
Cumulative effect adjustment – ASU 2016-01				(7,444)		7,444
Balance (in shares) at Mar. 31, 2018		6,177
Balance at Mar. 31, 2018		$ 115	81,889		(129,219)	176,500	129,285
Net Income						7,289	7,289
Stock awards-shares issued including tax benefits (in shares)		63
Stock awards-shares issued including tax benefits		$ 1	299				300
Treasury stock repurchases (in shares)		(186)
Treasury stock repurchases					(7,495)		(7,495)
Stock based compensation	[1]		233				233
Balance (in shares) at Jun. 30, 2018		6,054
Balance at Jun. 30, 2018		$ 116	82,421		(136,714)	183,789	129,612
Balance (in shares) at Dec. 31, 2018		5,957
Balance at Dec. 31, 2018		$ 116	82,776		(142,552)	199,107	139,447
Net Income						8,301	8,301
Stock awards-shares issued including tax benefits (in shares)		1
Stock awards-shares issued including tax benefits
Treasury stock repurchases (in shares)		(40)
Treasury stock repurchases					(1,618)		(1,618)
Stock based compensation	[2]		216				216
Balance (in shares) at Mar. 31, 2019		5,918
Balance at Mar. 31, 2019		$ 116	82,992		(144,170)	207,408	146,346
Balance (in shares) at Dec. 31, 2018		5,957
Balance at Dec. 31, 2018		$ 116	82,776		(142,552)	199,107	139,447
Net Income							16,955
Balance (in shares) at Jun. 30, 2019		5,757
Balance at Jun. 30, 2019		$ 116	83,302		(155,993)	216,062	143,487
Balance (in shares) at Mar. 31, 2019		5,918
Balance at Mar. 31, 2019		$ 116	82,992		(144,170)	207,408	146,346
Net Income						8,654	8,654
Stock awards-shares issued including tax benefits (in shares)		35
Stock awards-shares issued including tax benefits
Treasury stock repurchases (in shares)		(196)
Treasury stock repurchases					(11,823)		(11,823)
Stock based compensation	[2]		310				310
Balance (in shares) at Jun. 30, 2019		5,757
Balance at Jun. 30, 2019		$ 116	$ 83,302		$ (155,993)	$ 216,062	$ 143,487

[1] Approximately $70,000 was accrued as Share-based compensation at March 31, 2018 for restricted stock earned by non-employee directors but for which shares were not issued until April 2018.

[2] Approximately $90,000 was accrued as Share-based compensation at March 31, 2019 for restricted stock earned by non-employee directors but for which shares were not issued until April 2019.