Note 17 - Quarterly Consolidated Financial Data (Unaudited) (Details) - Quarterly Consolidated Financial Data (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Note 17 - Quarterly Consolidated Financial Data (Unaudited) (Details) - Quarterly Consolidated Financial Data [Line Items]
Net revenues	$ 39,426	$ 43,376
Gross margin	19,015	19,059
Earnings	4,008	3,053
Income tax expense	931	897
Net earnings	3,077	2,156
Net earnings (in Dollars per share)	$ 0.30	$ 0.21
Weighted average common shares outstanding - basic (in Shares)	10,363,678	10,273,377
Net earnings (in Dollars per share)	$ 0.30	$ 0.21
Weighted average common shares outstanding - diluted (in Shares)	10,419,103	10,347,077
Quarter One [Member]
Note 17 - Quarterly Consolidated Financial Data (Unaudited) (Details) - Quarterly Consolidated Financial Data [Line Items]
Net revenues	8,973	10,731
Gross margin	4,105	4,596
Earnings	370	(71)
Income tax expense	78	(28)
Net earnings	292	(43)
Net earnings (in Dollars per share)	$ 0.03	$ 0.00
Weighted average common shares outstanding - basic (in Shares)	10,327,428	10,205,114
Net earnings (in Dollars per share)	$ 0.03	$ 0.00
Weighted average common shares outstanding - diluted (in Shares)	10,366,312	10,205,114
Quarter Two [Member]
Note 17 - Quarterly Consolidated Financial Data (Unaudited) (Details) - Quarterly Consolidated Financial Data [Line Items]
Net revenues	11,218	13,576
Gross margin	5,465	6,194
Earnings	1,487	1,994
Income tax expense	484	660
Net earnings	1,003	1,334
Net earnings (in Dollars per share)	$ 0.10	$ 0.13
Weighted average common shares outstanding - basic (in Shares)	10,371,716	10,273,812
Net earnings (in Dollars per share)	$ 0.10	$ 0.13
Weighted average common shares outstanding - diluted (in Shares)	10,394,094	10,359,657
Quarter Three [Member]
Note 17 - Quarterly Consolidated Financial Data (Unaudited) (Details) - Quarterly Consolidated Financial Data [Line Items]
Net revenues	9,900	10,799
Gross margin	4,756	4,762
Earnings	1,114	1,012
Income tax expense	24	348
Net earnings	1,090	664
Net earnings (in Dollars per share)	$ 0.11	$ 0.06
Weighted average common shares outstanding - basic (in Shares)	10,377,189	10,302,417
Net earnings (in Dollars per share)	$ 0.10	$ 0.06
Weighted average common shares outstanding - diluted (in Shares)	10,404,095	10,360,377
Quarter Four [Member]
Note 17 - Quarterly Consolidated Financial Data (Unaudited) (Details) - Quarterly Consolidated Financial Data [Line Items]
Net revenues	9,335	8,270
Gross margin	4,689	3,507
Earnings	1,037	118
Income tax expense	345	(83)
Net earnings	$ 692	$ 201
Net earnings (in Dollars per share)	$ 0.07	$ 0.02
Weighted average common shares outstanding - basic (in Shares)	10,377,678	10,311,428
Net earnings (in Dollars per share)	$ 0.07	$ 0.02
Weighted average common shares outstanding - diluted (in Shares)	10,435,096	10,343,793