Note 15 - Segment Information (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

	2018		2017		2016
	(In thousands)
Revenue:
United States	$	115,451	$	112,885	$	104,445
Canada		4,235		4,674		4,939
Total	$	119,686	$	117,559	$	109,384
Long-lived assets:
United States	$	77,330	$	72,562	$	71,192
Canada		2,291		2,495		2,367
Total	$	79,621	$	75,057	$	73,559
Total assets:
United States	$	91,080	$	110,785	$	106,288
Canada		16,952		16,531		14,336
Total	$	108,032	$	127,316	$	120,624