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Note O - Equity (Details Textual) |  |  |  |  |  |  |  |  |  |  |  | 12 Months Ended |  |  |  |
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Dec. 29, 2016 | Dec. 13, 2016 USD ($) $ / shares shares | Nov. 18, 2016 USD ($) $ / shares shares | Nov. 11, 2016 USD ($) shares | Nov. 11, 2015 USD ($) $ / shares shares | Oct. 29, 2015 USD ($) $ / shares shares | Mar. 09, 2015 USD ($) $ / shares shares | Feb. 03, 2015 | Nov. 13, 2014 USD ($) $ / shares shares | Nov. 08, 2013 USD ($) $ / shares shares | Oct. 25, 2013 shares | Dec. 31, 2016 USD ($) $ / shares shares | Dec. 31, 2015 USD ($) $ / shares shares | Nov. 30, 2016 $ / shares | Nov. 30, 2015 $ / shares | Oct. 31, 2015 $ / shares | Sep. 23, 2015 shares
Preferred Stock, Shares Authorized | shares |  |  |  |  |  |  |  |  |  |  |  | 5,000,000 |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share | $ / shares |  |  |  |  |  |  |  |  |  |  |  | $ 0.0001 |  |  |  |  |
Share Price | $ / shares |  |  |  |  |  |  |  |  |  |  |  | $ 2.65 |  |  |  |  |
Proceeds from Issuance of Convertible Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  | $ 19,500,000 |  |  |  |
Dividends Payable |  |  |  |  |  |  |  |  |  |  |  | 401,250 | 133,851 |  |  |  |
Payments of Stock Issuance Costs |  |  |  |  |  |  |  |  |  |  |  | 84,866 | 459,102 |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  |  |  |  |  |  |  |  |  | 1,860,000 |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |  |  |  |  |  |  | 47,917 |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares |  |  |  |  |  |  | $ 2.52 |  |  |  |  |  |  |  |  |  |
Term Of Warrant |  |  |  |  |  |  | 1 year |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  |  |  |  |  |  |  | 1,860,000 | 19,500,000 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Issued for Services |  |  |  |  |  |  |  |  |  |  |  | 105,000 |  |  |  |  |
Class of Warrant or Right, Nonemployee Compensation Expense |  |  |  |  |  |  |  |  |  |  |  | $ 11,625 | $ 51,026 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | shares |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |  |
Promissory Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 69,445
Consultancy Firm [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share Price | $ / shares |  | $ 2.52 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Issued for Services | shares |  | 41,667 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Issued for Services |  | $ 105,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Director [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures | shares |  |  |  |  |  |  |  |  |  |  |  | 18,914 |  |  |  |  |
Stock Granted, Value, Share-based Compensation, Net of Forfeitures |  |  |  |  |  |  |  |  |  |  |  | $ 45,000 |  |  |  |  |
Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures | shares |  |  |  |  |  |  |  |  |  |  |  | 8,334 |  |  |  |  |
Stock Granted, Value, Share-based Compensation, Net of Forfeitures |  |  |  |  |  |  |  |  |  |  |  | $ 17,000 |  |  |  |  |
Warrants Issued Under PISPA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances |  |  |  |  |  |  |  |  |  |  |  | 7,478 |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  |  |  |  |  |  |  |  |  |  |  | 7,478 |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |  |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 7,478 |  |  |  |
Warrants Issued Under PISPA [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances |  |  |  |  |  |  |  |  |  | $ 325,891 |  |  |  |  |  |  |
Private Investor SPA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues | shares |  |  |  |  |  |  |  |  | 664,584 | 1,026,972 | 1,026,972 |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |  |  |  |  |  |  |  |  | 996,877 |  |  |  |  |  |  |  |
Proceeds from Issuance of Private Placement |  |  |  |  |  |  |  |  | $ 1,595,000 |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares |  |  |  |  |  |  |  |  | $ 3.60 |  |  |  |  | $ 3.60 |  |  |
Term Of Warrant |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |
Wong Kwok Fong [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues | shares |  |  | 516,667 | 516,667 |  |  |  |  |  |  |  |  |  |  |  |  |
Share Price | $ / shares |  |  | $ 3.60 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  | $ 1,860,000 | $ 1,860,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Reverse Stock Split [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio | 12 |  |  |  |  |  |  | 2 |  |  |  | 12 | 2 |  |  |  |
Convertible Preferred Stock [Member] | Series A-1 Shares [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Shares Authorized | shares |  |  |  |  |  |  |  |  |  |  |  | 100,000 | 100,000 |  |  |  |
Preferred Stock, Par or Stated Value Per Share | $ / shares |  |  |  |  |  |  |  |  |  |  |  | $ 0.0001 | $ 0.0001 |  |  |  |
Preferred Stock, Shares Outstanding | shares |  |  |  |  |  |  |  |  |  |  |  | 90,000 | 90,000 |  |  |  |
Stock Issued During Period, Shares, New Issues | shares |  |  |  |  | 5,500 | 84,500 |  |  |  |  |  |  | 90,000 |  |  |  |
Share Price | $ / shares |  |  |  |  | $ 100 | $ 100 |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Convertible Preferred Stock |  |  |  |  | $ 550,000 | $ 8,450,000 |  |  |  |  |  |  |  |  |  |  |
Initial Conversion Price | $ / shares |  |  |  |  | $ 3.60 | $ 3.60 |  |  |  |  |  |  |  |  |  | $ 3.60 |
Preferred Stock, Dividend Rate, Percentage |  |  |  |  | 6.00% |  |  |  |  |  |  |  |  |  |  |  |
Period Preceding the Dividend Payment Date |  |  |  |  | 10 days |  |  |  |  |  |  |  |  |  |  |  |
Liquidation Value Per Share | $ / shares |  |  |  |  | $ 100 |  |  |  |  |  |  |  |  |  |  |  |
Dividends Payable |  |  |  |  |  |  |  |  |  |  |  | $ 270,000 |  |  |  |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  |  |  |  |  |  |  |  | $ 9 |  |  |  |
Stock Issued During Period, Value, Issued for Services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Shares Issued | shares |  |  |  |  |  |  |  |  |  |  |  | 90,000 | 90,000 |  |  |  |
Convertible Preferred Stock [Member] | Series A-1 Shares [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum Ownership as a Result of Conversion |  |  |  |  | 9.99% |  |  |  |  |  |  |  |  |  |  |  |
Convertible Preferred Stock [Member] | Series B-1 Shares [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Shares Authorized | shares |  |  |  |  |  |  |  |  |  |  |  | 105,000 | 105,000 |  |  |  |
Preferred Stock, Par or Stated Value Per Share | $ / shares |  |  |  |  |  |  |  |  |  |  |  | $ 0.0001 | $ 0.0001 |  |  |  |
Preferred Stock, Shares Outstanding | shares |  |  |  |  |  |  |  |  |  |  |  | 105,000 | 105,000 |  |  |  |
Stock Issued During Period, Shares, New Issues | shares |  |  |  |  | 105,000 |  |  |  |  |  |  |  | 105,000 |  |  |  |
Share Price | $ / shares |  |  |  |  | $ 100 |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Convertible Preferred Stock |  |  |  |  | $ 10,500,000 |  |  |  |  |  |  |  |  |  |  |  |
Initial Conversion Price | $ / shares |  |  |  |  | $ 3.60 |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  |  |  | 2.50% |  |  |  |  |  |  |  |  |  |  |  |
Period Preceding the Dividend Payment Date |  |  |  |  | 10 days |  |  |  |  |  |  |  |  |  |  |  |
Liquidation Value Per Share | $ / shares |  |  |  |  | $ 100 |  |  |  |  |  |  |  |  |  |  |  |
Dividends Payable |  |  |  |  |  |  |  |  |  |  |  | $ 131,250 |  |  |  |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  |  |  |  |  |  |  |  | $ 11 |  |  |  |
Stock Issued During Period, Value, Issued for Services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Shares Issued | shares |  |  |  |  |  |  |  |  |  |  |  | 105,000 | 105,000 |  |  |  |
Convertible Preferred Stock [Member] | Series B-1 Shares [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum Ownership as a Result of Conversion |  |  |  |  | 9.99% |  |  |  |  |  |  |  |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues | shares |  |  |  |  |  |  |  |  |  |  |  | 516,667 |  |  |  |  |
Share Price | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3.60 |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  |  |  |  |  |  |  | $ 52 |  |  |  |  |
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures | shares |  |  |  |  |  |  |  |  |  |  |  | 27,248 | 8,102 |  |  |  |
Stock Issued During Period, Shares, Issued for Services | shares |  |  |  |  |  |  |  |  |  |  |  | 41,667 |  |  |  |  |
Stock Issued During Period, Value, Issued for Services |  |  |  |  |  |  |  |  |  |  |  | $ 4 |  |  |  |  |
Common Stock [Member] | Private Investor SPA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues | shares |  |  |  |  |  |  |  |  |  | 1,026,972 | 1,026,972 |  |  |  |  |  |
Warrant [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3 |  |  |  |  |  |  | $ 98,065 |  |  |  |  |  |  |  |  |  |
Fair Value Assumptions, Risk Free Interest Rate |  |  |  |  |  |  | 1.66% |  |  |  |  |  |  |  |  |  |
Fair Value Assumptions, Expected Term |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |
Fair Value Assumptions, Expected Dividend Rate |  |  |  |  |  |  | 0.00% |  |  |  |  |  |  |  |  |  |
Fair Value Assumptions, Expected Volatility Rate |  |  |  |  |  |  | 115.70% |  |  |  |  |  |  |  |  |  |
Warrant [Member] | Private Investor SPA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |  |  |  |  |  |  |  |  |  | 1,026,972 | 1,026,972 |  |  |  |  |  |
Private Investor SPA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares |  |  |  |  |  |  |  |  |  | $ 6 |  |  |  |  |  |  |
Term Of Warrant |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  |  |  |  |  | $ 3,697,100 |  |  |  |  |  |  |
Placement Agent Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |  |  |  |  |  |  |  |  |  | 82,158 |  |  |  |  |  |  |
Commissions and Fees, Percent of Gross Proceeds |  |  |  |  |  |  |  |  |  | 8.00% |  |  |  |  |  |  |

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