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10. Stock Options (Tables)
12 Months Ended
Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of grant awards
 Officer's Name    Position    Five Year Performance Grant Award
Olaf Karasch   President & Chief Executive Officer   150,000
Mark Schomp   Executive Vice President, Sales & Marketing   50,000
Barbara Russell   Treasurer & Chief Financial Officer   15,000
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
        Twelve Months Ended December 31,
        2016   2015
Risk-free interest rate       1.90%   2.00%
Expected dividend yield       0.00%   0.00%
Expected volatility       0.59      0.66   
Expected term (in years)       7.00      7.00   
Schedule of Share-based Compensation, Stock Options, Activity
        Options
    Total
Reserved
  Outstanding   Weighted Avg
Exercise Price
  Range of
Exercise Prices
Balances at
December 31, 2014
  385,369    147,705    $13.24   $2.70 - $30.55
Granted       6,000    $6.34   $6.34 - $6.34
Forfeited or expired       (7,400)   $30.27   $29.50 - $30.55
Balances at
December 31, 2015
  385,369    146,305    $13.24   $2.70 - $30.55
Granted       19,975    $4.50   $6.34 - $6.34
Forfeited or expired       (13,116)   $10.38   $29.50 - $30.55
Balances at
December 31, 2016
  385,369    153,164    $10.84   $2.70 - $18.22
Schedule of Share-based Compensation by Range of Exercise Prices
Options Outstanding at December 31,    
2016   2015   Range of
Exercise Prices
39,164    19,189    $   2.70 - $   9.99
90,500    103,616    $ 10.00 - $ 14.99
23,500    23,500    $ 15.00 - $ 19.99
153,164    146,305