Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) - shares	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Warrants exercised (shares)	5	0	0	0
Purchase of treasury stock (shares)	1,098	26,675	3,877	11,076
Issuance of restricted stock (shares)	49,665	105,108	19,162	61,263